Title:
CONTROL ROD GUIDE TUBE OF NUCLEAR POWER STATION
Document Type and Number:
WIPO Patent Application WO/2023/137987
Kind Code:
A1
Abstract:
A control rod guide tube of a nuclear power station, comprising a protective cover (30) and a whole-course guide assembly (40) mounted in the protective cover (30). The whole-course guide assembly (40) comprises at least one whole-course continuous guide element; a whole-course continuous guide channel is provided in the whole-course continuous guide element; and the whole-course continuous guide channel performs whole-course continuous guide on at least one control rod in a single control rod assembly within a stroke range of the guide tube. According to the control rod guide tube of the nuclear power station, discontinuous guide section structures of guide gratings arranged at intervals are changed into whole-course continuous guide sections formed by long duplex pipe structures, such that a control rod stroke protection function is optimized, the risk that the control rod is bent and deformed due to transverse impact of fluid in an upper cavity is reduced, and the integrity of a control rod structure is ensured; meanwhile, the wear resistance of a specific position of the control rod guide tube is improved, such that the service life of the control rod guide tube is greatly prolonged, and later operation costs are reduced.
Inventors:
HUANG JIANXUE (CN)
CHEN QIU YING (CN)
DUAN YUANGANG (CN)
RAN XIAOBING (CN)
LIU YANWU (CN)
SHI LIN (CN)
MO SHAOJIA (CN)
WU KUOMIN (CN)
XIAO WEI (CN)
XIONG YI (CN)
CHEN QIU YING (CN)
DUAN YUANGANG (CN)
RAN XIAOBING (CN)
LIU YANWU (CN)
SHI LIN (CN)
MO SHAOJIA (CN)
WU KUOMIN (CN)
XIAO WEI (CN)
XIONG YI (CN)
Application Number:
PCT/CN2022/102855
Publication Date:
July 27, 2023
Filing Date:
June 30, 2022
Export Citation:
Assignee:
CHINA NUCLEAR POWER ENG CO LTD (CN)
CHINA NUCLEAR POWER DESIGN COMPANY LTD SHENZHEN (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
CHINA NUCLEAR POWER DESIGN COMPANY LTD SHENZHEN (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
International Classes:
G21C7/12; G21C19/10
Foreign References:
| CN114464331A | 2022-05-10 | |||
| CN110085332A | 2019-08-02 | |||
| CN202736503U | 2013-02-13 | |||
| CN109448872A | 2019-03-08 | |||
| CN101770822A | 2010-07-07 | |||
| US5237595A | 1993-08-17 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF:
Previous Patent: PULLEY POSITIONING METHOD AND AXIAL POSITIONING MECHANISM
Next Patent: AUTOMOBILE TAILGATE CONTROL METHOD AND VEHICLE
Next Patent: AUTOMOBILE TAILGATE CONTROL METHOD AND VEHICLE